Fix Pods number in graph not updating (minor label) (#2728)
Fix Pods number in graph not updating (minor label) (#2728)

By only caching layout values (x, y, rank)

Fixes #2401.
alban/scope,alban/scope,weaveworks/scope,weaveworks/scope,weaveworks/scope,alban/scope,weaveworks/scope,alban/scope,kinvolk/scope,kinvolk/scope,kinvolk/scope,kinvolk/scope,alban/scope,weaveworks/scope,alban/scope,kinvolk/scope,weaveworks/scope,kinvolk/scope